Open Source Credits

Modufile is built entirely on open-source software. We are grateful to every maintainer and contributor whose work makes this possible.

AGPL-3.0 License Notice

This application uses MuPDF, Ghostscript, and PyMuPDF — all © Artifex Software, Inc. and licensed under the GNU Affero General Public License v3.0.

✓Open source use: Fully permitted. The AGPL requires that source code of any application using these components (including over a network) be publicly available. This repository satisfies that requirement.

✗Proprietary / commercial use: If you build a closed-source product using this code or the WASM binaries, you must obtain a commercial license from Artifex Software.

Framework & Runtime

Next.js

by Vercel

React framework with App Router, static export, and edge runtime.

MIT

React

by Meta

The library for building user interfaces.

MIT

TypeScript

by Microsoft

Typed superset of JavaScript that compiles to plain JS.

Apache-2.0

PDF Processing

MuPDF

by Artifex Software, Inc.

High-performance PDF engine used for rendering, annotation, and permanent content-stream redaction via WebAssembly.

AGPL-3.0commercial use requires Artifex license

Ghostscript

by Artifex Software, Inc.

PostScript and PDF interpreter used for advanced PDF compression via WebAssembly.

AGPL-3.0commercial use requires Artifex license

PyMuPDF

by Artifex Software, Inc.

Python bindings for MuPDF, used for PDF-to-Word and PDF-to-Excel conversion via Pyodide WASM.

AGPL-3.0commercial use requires Artifex license

PDF.js

by Mozilla

Mozilla's PDF renderer — used for page rendering and text extraction in the browser.

Apache-2.0

pdf-lib

by Andrew Dillon

Create and modify PDFs in JavaScript — used for merging, metadata editing, watermarking, and page operations.

MIT

Office & Document Formats

Pyodide

by Mozilla / Pyodide contributors

Python runtime compiled to WebAssembly — hosts the PyMuPDF environment for document conversion in the browser.

MPL-2.0

LibreOffice WASM (Zeta)

by The Document Foundation

LibreOffice compiled to WebAssembly for in-browser Office-to-PDF conversion.

MPL-2.0 / LGPL-3.0+

SheetJS

by SheetJS LLC

Spreadsheet data parsing and writing — used for Excel (XLSX) conversion.

Apache-2.0

docx

by Dolan Miu

Generate .docx Word documents in JavaScript.

MIT

PptxGenJS

by Brent Ely

Create PowerPoint PPTX presentations in JavaScript.

MIT

Image & Media

ImageMagick WASM

by ImageMagick Studio LLC

ImageMagick compiled to WebAssembly for image conversion, resizing, and format support (HEIC, AVIF, WebP, TIFF).

Apache-2.0

FFmpeg.wasm

by Jerome Wu

FFmpeg compiled to WebAssembly for video and audio processing in the browser.

LGPL-2.1

OCR

Tesseract.js

by Project Naptha

Pure JavaScript OCR engine supporting 100+ languages — extracts text from images and scanned PDFs.

Apache-2.0

UI & Interactions

Tailwind CSS

by Tailwind Labs

Utility-first CSS framework used for all styling.

MIT

Framer Motion

by Framer

Production-ready motion library for React.

MIT

Lucide React

by Lucide contributors

Beautiful and consistent open-source icon set.

ISC

dnd kit

by Claudéric Demers

Lightweight, performant drag-and-drop toolkit for React — used for reordering PDF pages.

MIT

tailwind-merge

by Dany Castillo

Utility to merge Tailwind CSS class names without conflicts.

MIT

clsx

by Luke Edwards

Tiny utility for constructing className strings conditionally.

MIT

State & Storage

Zustand

by Poimandres

Small, fast, and scalable state management for React.

MIT

idb

by Jake Archibald

IndexedDB with a promise-based API — used for local persistence.

ISC

Utilities

fflate

by Arjun Barrett

High-performance (de)compression in pure JavaScript — used for ZIP and GZIP operations.

MIT

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